16427620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{839}}^1$

素因数の和:948

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 21674780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 839, 890, 979, 1678, 1780, 1958, 3356, 3916, 4195, 4895, 8390, 9229, 9790, 16780, 18458, 19580, 36916, 46145, 74671, 92290, 149342, 184580, 298684, 373355, 746710, 821381, 1493420, 1642762, 3285524, 4106905, 8213810, 16427620]

約数ペア:

[(1, 16427620), (2, 8213810), (4, 4106905), (5, 3285524), (10, 1642762), (11, 1493420), (20, 821381), (22, 746710), (44, 373355), (55, 298684), (89, 184580), (110, 149342), (178, 92290), (220, 74671), (356, 46145), (445, 36916), (839, 19580), (890, 18458), (979, 16780), (1678, 9790), (1780, 9229), (1958, 8390), (3356, 4895), (3916, 4195)]